fix(interactive): Fix robust test (#4193)

Fix the bug in robust test. Related issue:
#4192

flex/interactive/sdk/python/gs_interactive/client/session.py

@@ -616,7 +616,7 @@ def call_procedure_raw(self, graph_id: StrictStr, params: bytes) -> Result[str]:
             # Here we add byte of value 1 to denote the input format is in encoder/decoder format
             response = self._query_api.call_proc_with_http_info(
                 graph_id = graph_id, 
-                body = append_format_byte(params.encode(), InputFormat.CPP_ENCODER)
+                body = append_format_byte(params, InputFormat.CPP_ENCODER)
             )
             return Result.from_response(response)
         except Exception as e:
@@ -627,7 +627,7 @@ def call_procedure_current_raw(self, params: bytes) -> Result[str]:
             # gs_interactive currently support four type of inputformat, see flex/engines/graph_db/graph_db_session.h
             # Here we add byte of value 1 to denote the input format is in encoder/decoder format
             response = self._query_api.call_proc_current_with_http_info(
-                body = append_format_byte(params.encode(), InputFormat.CPP_ENCODER)
+                body = append_format_byte(params, InputFormat.CPP_ENCODER)
             )
             return Result.from_response(response)
         except Exception as e:

flex/interactive/sdk/python/gs_interactive/tests/conftest.py

@@ -382,7 +382,6 @@ def import_data_to_full_modern_graph(sess: Session, graph_id: str):
     assert wait_job_finish(sess, job_id)
 
 def submit_query_via_neo4j_endpoint(neo4j_sess : Neo4jSession, graph_id: str, query: str):
-    query = "MATCH(n) return n"
     result = neo4j_sess.run(query)
     #check have 1 records, result 0
     result_cnt = 0

flex/interactive/sdk/python/gs_interactive/tests/test_robustness.py

@@ -32,11 +32,15 @@
 from gs_interactive.tests.conftest import import_data_to_vertex_only_modern_graph, import_data_to_partial_modern_graph, import_data_to_full_modern_graph
 
 
-cypher_queries = [
+vertex_only_cypher_queries = [
     "MATCH(n) return count(n)",
     "MATCH(n) return n",
     "MATCH(n) return n limit 10",
-    "MATCH()-[r]->() return count(r)",
+]
+
+# extend the query list to include queries that are not supported by vertex-only graph
+cypher_queries = vertex_only_cypher_queries + [
+    #"MATCH()-[e]->() return count(e)", # currently not supported by compiler+ffi, see https://github.com/alibaba/GraphScope/issues/4192
     "MATCH(a)-[b]->(c) return count(b)",
     "MATCH(a)-[b]->(c) return b",
     "MATCH(a)-[b]->(c) return c.id",
@@ -48,11 +52,11 @@ def test_query_on_vertex_only_graph(interactive_session, neo4j_session, create_v
     """
     print("[Query on vertex only graph]")
     start_service_on_graph(interactive_session, create_vertex_only_modern_graph)
-    run_cypher_test_suite(neo4j_session, create_vertex_only_modern_graph, cypher_queries)
+    run_cypher_test_suite(neo4j_session, create_vertex_only_modern_graph, vertex_only_cypher_queries)
 
     start_service_on_graph(interactive_session,"1")
     import_data_to_vertex_only_modern_graph(interactive_session, create_vertex_only_modern_graph)
-    run_cypher_test_suite(neo4j_session, create_vertex_only_modern_graph, cypher_queries)
+    run_cypher_test_suite(neo4j_session, create_vertex_only_modern_graph, vertex_only_cypher_queries)
 
 def test_query_on_partial_graph(interactive_session,neo4j_session, create_partial_modern_graph):
     """